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3 protocols using col18a1

1

Immunofluorescence Analysis of Pancreatic Tissue

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Cells were fixed with 4% FA solutions and paraffin-embedded pancreatic tissues were deparaffinized. Fixed cells and tissues were permeabilized with Triton X-100, sequentially incubated with blocking solution and primary antibodies, including Col18a1 (Invitrogen™), Serpin E1, CD68 (Abcam Plc.), NG2 (Sigma-Aldrich), PECAM-1 (Santa Cruz Biotechnology, Inc.), and MPO (Agilent Technologies, lnc., Santa Clara, CA, USA), at 4 °C overnight, and further incubated with secondary antibodies conjugated with Alexa Flour® 488 or Alexa Flour® 555 (Abcam Plc.). DAPI (4’,6-diamidino-2-phenylindole) solution (Invitrogen™) was used to stain the nuclei. Fluorescence signals were observed and imaged using the ZEISS Axio Imager M1 microscope (Carl Zeiss, Oberkochen, Germany).
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2

Quantitative Real-Time PCR Analysis

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Total RNA was isolated and first strand cDNA was synthesized using iScript (Bio-Rad). Quantitative real-time PCR with a BioRad iCycler® used primers mixed with the iQ™SYBR®Green Supermix (Bio-Rad). Primer sets for Vegfr1, Vegfr2, Tie2, Itg1, Vegf-variants, Mmp2, Mmp9, Timp1, Timp2, Timp3, Col1a1, Col6a5, Col6a3, Col6a1/2, Col18a1, Col4a1, Lama5 and Gapdh were purchased from Invitrogen. Primers are listed in Supplementary Table 1. Specificity of reactions was determined by melting curve analysis. The relative fold changes of gene expression between each gene of interest were calculated by standard curve method. For each gene of interest ≥3 independent experiments were performed and each experiment was run in duplicates or triplicates.
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3

Quantitative Real-Time PCR Analysis

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Total RNA was isolated and first strand cDNA was synthesized using iScript (Bio-Rad). Quantitative real-time PCR with a BioRad iCycler® used primers mixed with the iQ™SYBR®Green Supermix (Bio-Rad). Primer sets for Vegfr1, Vegfr2, Tie2, Itg1, Vegf-variants, Mmp2, Mmp9, Timp1, Timp2, Timp3, Col1a1, Col6a5, Col6a3, Col6a1/2, Col18a1, Col4a1, Lama5 and Gapdh were purchased from Invitrogen. Primers are listed in Supplementary Table 1. Specificity of reactions was determined by melting curve analysis. The relative fold changes of gene expression between each gene of interest were calculated by standard curve method. For each gene of interest ≥3 independent experiments were performed and each experiment was run in duplicates or triplicates.
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